Question

3.2.4 quiz: transportation revolution
question 8 of 10
growth in the use of railroads was made possible by:
a. the development of accurate timekeeping.
b. improvements in iron and steel production.
c. agreements with canal and streetcar interests.
d. production of reliable maps.

Explanation:

Railroads require tracks made of iron and steel. Improvements in iron and steel production made it possible to produce more and better - quality materials for tracks, which was crucial for the growth of railroad use. Accurate timekeeping was important for scheduling but not the most fundamental factor for growth. Agreements with other interests and production of maps were not as essential as the material for building the railroads.

Answer:

B. improvements in iron and steel production.